| nameID | The ID of the property. This is the same ID that Shader.PropertyToID returns. |
| name | The name of the property. |
Matrix4x4
The value for the Matrix4x4 you specify. Returns Matrix4x4.identity if VFXEventAttribute.HasMatrix4x4 returns false.
Use this method to get the value of a named Matrix4x4 property from the VFXEventAttribute.